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Note 4 - Leases (Tables)

6 Months Ended

Jun. 30, 2019

Notes Tables

Lessee, Operating and Finance Lease, Assets and Liabilities [Table Text Block]

		June 30, 2019				December 31 , 2018
Operating leases :
Operating lease right-of-use		$	1,925,645			$	-

Operating lease liabilities - current		$	603,152			$	-
Operating lease liabilities – long-term			1,352,749				-
Total operating lease liabilities		$	1,955,901			$	-

Finance leases :
Property and equipment, at cost		$	1,171,295			$	1,171,295
Accumulated depreciation			(1,166,115	)			(1,162,256	)
Property and equipment, net		$	5,180			$	9,039

Finance lease liabilities - current		$	5,201			$	13,789
Finance lease liabilities – long-term			-				-
Total finance lease liabilities		$	5,201			$	13,789

Weighted average remaining lease term:
Operating leases			4.4				-
Finance lease			0.1				0.8

Weighted average discount rate:
Operating leases			7.0	%			-
Finance leases			9.0	%			7.3	%

Maturity of Operating and Finance Lease Liabilities [Table Text Block]

Maturities of lease liabilities at June 30, 2019 were as follows:
		Operating lease				Finance lease
July 2019 – June 2020		$	624,358			$	5,240
July 2020 – June 2021			531,629				-
July 2021 – June 2022			370,864				-
July 2022 – June 2023			342,510				-
July 2023 – June 2024			335,706				-
Thereafter			27,801				-
Total payment under lease agreements			2,232,868				5,240
Less imputed interest			(276,967	)			(39	)
Total lease liability		$	1,955,901			$	5,201

Schedule of Future Minimum Lease Payments for Capital Leases and Operating Leases [Table Text Block]

Year ending December 31,		Operating lease
2019		$	712,250
2020			578,997
2021			402,584
2022			350,249
Thereafter			560,977
Total		$	2,605,057