Note 9 - Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2015

Notes Tables

Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block]

Year ending December 31:
2016	$	3,685,292
2017		2,925,137
2018		2,141,641
2019		1,474,072
2020		934,880
2021		584,334
2022		438,003
2023		317,870
2024		242,023
2025-2026		187,114
Total minimum lease payments	$	12,930,366