Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
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-URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(a)(16))
-URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 210
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Name:	us-gaap_LongTermDebt
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Note 4 - Long-term Loans (Details Textual) $ in Thousands, ¥ in Millions	Mar. 28, 2019 USD ($)	Jun. 30, 2019 USD ($)	Mar. 28, 2019 CNY (¥)	Jan. 21, 2019 USD ($)	Jan. 21, 2019 CNY (¥)
Long-term Debt, Total		$ 2,913
Loan Arrangement with Third Party [Member]
Long-term Debt, Total				$ 1,493	¥ 10
Debt Instrument, Interest Rate, Stated Percentage				15.00%	15.00%
Term Loan [Member] \| China Construction Bank [Member]
Long-term Debt, Total	$ 1,493		¥ 10
Debt Instrument, Term	3 years
Term Loan [Member] \| China Construction Bank [Member] \| Three Yearr Loan Interest Rate Quoted by People's Bank of China [Member]
Debt Instrument, Annual Interest Rate Based on Variable Rate	120.00%