Note 8 - Related Party Transactions (Details Textual) - USD ($)	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
One Employee [Member]
Related Party Transaction, Purchases from Related Party	$ 0.90	$ 0	$ 0
Accounts Payable, Related Parties, Current	300,000
Nabors Corporate Services, Inc [Member]
Liabilities Subject to Compromise, Provision for Expected and Allowed Claims		13,300,000
Due to Related Parties	900,000
Nabors Corporate Services, Inc [Member] | Lease Transaction [Member]
Due to Related Parties		600,000
Due from Related Parties	500,000	100,000
Shehtah Nabors LP [Member]
Due to Related Parties		0
Due from Related Parties		1,800,000
Pyote [Member]
Due to Related Parties		100,000
Due from Related Parties		0
Related Party Transaction, Amounts of Transaction		800,000	600,000
Revenue from Related Parties			300,000
Board of Directors [Member]
Related Party Transaction, Purchases from Related Party	0	0	1,900,000
Accounts Payable, Related Parties, Current			100,000
Several Employees 1 [Member]
Related Party Transaction, Purchases from Related Party	500,000	500,000	500,000
Accounts Payable, Related Parties, Current	0	100,000
Unconsolidated Equity [Member]
Related Party Transaction, Purchases from Related Party	0	1,700,000	11,800,000
Accounts Payable, Related Parties, Current	$ 0	2,100,000	1,500,000
Vendor Associated with Employee [Member]
Related Party Transaction, Purchases from Related Party		$ 0	2,100,000
Accounts Payable, Related Parties, Current			$ 200,000