Note 1 - Preparation of Interim Unaudited Financial Statements (Details Textual)	Mar. 19, 2019 USD ($) shares
Senior Secured Term Loan [Member]
Notes Receivable, Related Parties	$ 2,000,000
The Lenders [Member] | Senior Secured Term Loan [Member]
Notes Receivable, Related Parties	$ 10,500,000
HC Government Realty Trust, Inc [Member] | Series B Cumulative Convertible Preferred Stock [Member]
Equity Method Investment, Shares Purchased During Period (in shares) | shares	200,000
Preferred Stock, Dividend Rate, Percentage	10.00%
Equity Method Investment, Aggregate Cost	$ 2,000,000
HC Government Realty Trust, Inc [Member] | Series B Cumulative Convertible Preferred Stock [Member] | Investors Affiliated with the Hale Partnership [Member]
Equity Method Investment, Shares Purchased During Period (in shares) | shares	850,000
Equity Method Investment, Aggregate Cost	$ 8,500,000
HC Government Realty Trust, Inc [Member] | Common Stock of Investee [Member]
Equity Method Investment, Shares Purchased During Period (in shares) | shares	300,000
Equity Method Investment, Aggregate Cost	$ 3,000,000
HC Government Realty Trust, Inc [Member] | Common Stock of Investee [Member] | Investors Affiliated with the Hale Partnership [Member]
Equity Method Investment, Shares Purchased During Period (in shares) | shares	850,000