Note 9 - Commitments and Contingencies (Details Textual) - USD ($)	1 Months Ended	3 Months Ended				12 Months Ended
	Sep. 24, 2012	Mar. 31, 2014	Dec. 31, 2013	Jun. 30, 2013	Sep. 30, 2012	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Operating Leases, Rent Expense						$ 3,844,641	$ 3,675,788	$ 3,312,152
Litigation Settlement, Amount	$ 993,386
Payments for Legal Settlements		$ 744,273
Loss Contingency Escrow Deposit		993,386
Loss Contingency Escrow Account Balance		$ 249,000
Litigation Settlement, Expense					$ 993,386
Loss Contingency Benefit				$ 312,000
Litigation Settlement, Payroll Taxes			$ 63,000