CONSOLIDATED BALANCE SHEETS (Parenthetical) (USD $)	Dec. 31, 2013	Dec. 31, 2012
Accounts receivable:
Allowance for doubtful accounts of joint interest billings	$ 174,000	$ 174,000
STOCKHOLDERS' EQUITY:
Common stock, par value (in dollars per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	75,000,000	75,000,000
Common stock, shares issued (in shares)	8,993,336	8,970,936
Common stock, shares outstanding (in shares)	8,066,336	8,043,936
Treasury stock, shares (in shares)	927,000	927,000