Quarterly report pursuant to Section 13 or 15(d)

Note 2 - Acquisitions (Details Textual)

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Note 2 - Acquisitions (Details Textual) - USD ($)
3 Months Ended 6 Months Ended
Dec. 15, 2017
Aug. 04, 2017
Sep. 30, 2018
Oct. 01, 2017
Sep. 30, 2018
Oct. 01, 2017
Apr. 01, 2018
Payments to Acquire Businesses, Gross         $ 8,725,000  
Repayments of Long-term Capital Lease Obligations         845,000  
Goodwill, Ending Balance     $ 7,125,000   7,125,000   $ 7,125,000
Amortization of Intangible Assets, Total     214,000 $ 240,000 414,000 429,000  
Noncompete Agreements [Member]              
Amortization of Intangible Assets, Total     19,000 13,000 39,000 15,000  
Customer Relationships [Member]              
Amortization of Intangible Assets, Total     79,000 128,000 157,000 254,000  
Selling, General and Administrative Expenses [Member]              
Amortization of Intangible Assets, Total     213,000 $ 239,000 411,000 $ 426,000  
Carousel Designs, LLC. Acquisition [Member]              
Payments to Acquire Businesses, Gross   $ 8,700,000          
Repayments of Long-term Capital Lease Obligations   845,000          
Goodwill, Ending Balance   $ 5,679,000          
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual     1,800,000   $ 3,600,000    
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life         11 years    
Carousel Designs, LLC. Acquisition [Member] | Trade Names [Member]              
Finite-Lived Intangible Asset, Useful Life         15 years    
Carousel Designs, LLC. Acquisition [Member] | Developed Technology Rights [Member]              
Finite-Lived Intangible Asset, Useful Life         10 years    
Carousel Designs, LLC. Acquisition [Member] | Noncompete Agreements [Member]              
Finite-Lived Intangible Asset, Useful Life         5 years    
Carousel Designs, LLC. Acquisition [Member] | Selling, General and Administrative Expenses [Member]              
Amortization of Intangible Assets, Total     64,000   $ 114,000    
Sassy Acquisition [Member]              
Payments to Acquire Businesses, Gross $ 6,500,000            
Goodwill, Ending Balance $ 320,000            
Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual     2,800,000   $ 5,000,000    
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life         11 years    
Sassy Acquisition [Member] | Trade Names [Member]              
Finite-Lived Intangible Asset, Useful Life         15 years    
Sassy Acquisition [Member] | Customer Relationships [Member]              
Finite-Lived Intangible Asset, Useful Life         10 years    
Sassy Acquisition [Member] | Selling, General and Administrative Expenses [Member]              
Amortization of Intangible Assets, Total     $ 56,000   $ 111,000