Note 12 - Subsequent Events (Details Textual)		3 Months Ended
	Apr. 01, 2016 USD ($)	Mar. 31, 2016 USD ($)	Mar. 31, 2015 USD ($)
Virginia [Member] | Subsequent Event [Member] | Two Virginia Subsidiaries [Member]
Number of Subsidiaries Sold	2
Subsequent Event [Member] | Two Virginia Subsidiaries [Member] | Promissory Note Receivable One [Member]
Promissory Notes ReceivableFaceAmount	$ 160,000
Note Receivable Interest Rate	1.50%
Number of Installments	2
Note Receivable Installment One Due In 90 Days	$ 50,000
Note Receivable Installment Two Due in 150 Days	110,000
Note Receivable Minimum Repayment Amount Due in 90 Days	150,000
Subsequent Event [Member] | Two Virginia Subsidiaries [Member] | Promissory Note Receivable Two [Member]
Promissory Notes ReceivableFaceAmount	$ 400,000
Note Receivable Interest Rate	5.00%
Number of Installments	3
Note receivable Installment	$ 133,333
Subsequent Event [Member] | Two Virginia Subsidiaries [Member]
Disposal Group, Including Discontinued Operation, Consideration	610,000
Proceeds from Divestiture of Businesses	$ 50,000
Number of Promissory Notes Receivable	2
Two Virginia Subsidiaries [Member]
Disposal Group, Including Discontinued Operation, Revenue		$ 254,000	$ 275,000
Disposal Group, Including Discontinued Operation, Operating Income (Loss)		151,000	132,000
Disposal Group, Including Discontinued Operation, Revenue		$ 4,695,000	$ 5,743,000